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Usb connection, Installing the driver for the usb cable – Vaisala HMT310 User Manual

Page 37

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Chapter 4 _________________________________________________________________ Operation

VAISALA ________________________________________________________________________ 37

USB Connection

When performing temporary checks or adjustments, HMT310 can be

connected to a computer by using a USB cable (238607). The USB cable

is an optional accessory: for more information on ordering optional

items, see section Spare Parts and Accessories on page 93.

NOTE

Before starting to use the USB cable, you must install the USB cable

driver (requires Windows).

NOTE

When the transmitter is powered by the USB connection, the heating and

purge functions may not work as intended due to the limited USB

powering capability. This depends on the computer used and

environmental conditions. Using the USB connection as a permanent

power supply is not recommended.

Installing the Driver for the USB Cable

1.

Check that the USB cable is not connected. Disconnect the cable if

you have already connected it.

2.

Insert the media that came with the cable, or download the driver

from

www.vaisala.com

.

3.

Execute the USB driver installation program (setup.exe), and

accept the installation defaults. The installation of the driver may

take several minutes.

4.

After the driver has been installed, connect the USB cable to a USB

port on your computer. Windows will detect the new device, and

use the driver automatically.

5.

The installation has reserved a COM port for the cable. Verify the

port number, and the status of the cable, using the Vaisala USB

Instrument Finder program that has been installed in the Windows

Start menu.

Windows will recognize each individual cable as a different device, and

reserve a new COM port. Remember to use the correct port in the

settings of your terminal program.